once the game starts (countdown 1) you need get a JEEP and go fast to the first FLAG you see then wait until its conquered you get 250 points, then you have enought time to get a second flag and get 200 because im sure others already there, with that you have 450 points, you can try reach a 3rd flag but there can be enemies and a JEPP is not a safe place to stay un middle a combat, rememmber NO wait for others enter the jeep you need each second at start.

If you cant drive a tank get the second slot (minigun), the DRIVEr will get 100% of the points but if you kill a soldier you get those 100 points, if the driver is about destroy a tank and its close wait until that tank get of fire and just in the moment he SHOT get outside and use your bazzoka to destroy it, you will get 50% of the points of the tank but 100 of the enemy driver, then get inside your tank and the noob driver probably will not notice what you did, in case you asking me hey but if the enemy tank have a enemy in the minigun WTF i do i cant go outside because he will kill me, ok in that case rememmber if the tank get on fire the minigunner will go out to repair, if he is not a engineer he will run far of the tank then you can kill him and get 100 points.

and finally, you get more points for capture flag than kill ppl, so you just need to stay near a flag when others were already fighting for it, you get 200 points for free, if the flag was red you get 250 + 200 = 450 points. So this means its possible have 300 or 4000 points without kill a enemy. A esay way to get points is enter a server with 30/64 ppl because you will get a lot of flags without snipers campers.